you'll see how the wizarding world was brought to the big screen. we'll even show you an exclusive never-before-scene clip of the final movie just days before it open. first a look back on how it all began. >> be safe. be strong. >> reporter: harry potter. the boy who lived, faces his biggest challenge yet. a final showdown with the dark lord and an epic battle ten years in the making. >> the last harry potter. how's that feel? >> you know, very, very strange, considering we've done it for ten years. but it's also a wonderful feeling of achievement and particularly i'm very, very proud of this last film and i think it's the best out of all of them, i think, and you know, i'm very, very excited. >> also excited, the millions of harry potter fans around the world who have been waiting years for this if a nail. >> from what i could see just shooting it, i knew it was -- pretty epic. it's -- i think we -- we do it justice. i definitely -- yeah, we do. >> now, join me, harry, and confront your fate. >> very serious. rising again and really quite disturbi